Microsoft Desktop Runtime [upd] -

if (OpenClipboard(IntPtr.Zero))

// Store clipboard content in cloud-based storage CloudClipboardStorage.StoreClipboardContentInCloud(content);

You can have multiple versions installed side-by-side. Different apps may require different versions.

The is a core component required to run many Windows desktop applications built with .NET (specifically .NET Core 3.0 and later, as well as .NET 5/6/7/8+). It is not a standalone program you launch, but rather a behind-the-scenes execution environment that allows apps to function properly.